Abrading material
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United States of America Patent
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-
Apr 3, 2001
Grant Date -
N/A
app pub date -
May 21, 1998
filing date -
Nov 23, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides a method of making an abrading sheet material comprising knitting a ground structure comprising a shrinkable polyolefin yarn with laid-in looped threads of a material which is preferably harder than that or those of the ground structure, such that the loop threads are raised from a surface of the ground structure, and shrinking the shrinkable yarn of the ground structure to grip the looped threads to lock the loops in place in the ground structure.
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